DA1903 Assembly Instructions
Barrel / Receiver Subassembly
Parts needed:
- DAS311
- DAS7
- DAS13
- DAS15
- DAS14
- Hand Guard Pin #42
- Connector Pin #41
- Front Band Pin #51
- Front sight Pin #40
Instructions:
- Slip DAS7 onto DAS311. Make sure that DAS7 is oriented with lip in direction of barrel.
- Press Pin #42 into DAS311 capturing DAS7 behind pin. Pin # 42 goes in with knurled end first.
- Insert barrel, DAS13, into round end of DAS311. Barrel end with larger pin hole (for Pin #41) goes in first. Tap barrel in opening until the hole in the DAS13 aligns with the hole in the DAS311. Hammer pin #41 to secure the DAS13 and DAS311.
- Slide DAS15 on open barrel end with rounded bottom slide facing front.
- Tap DAS14 onto barrel end until holes align. Hammer pin #40 to secure front sight.
Assemble Barrel / Receiver Subassembly with Base Stock DAS1
Parts needed:
- DAS1
- DAS8
- Trigger guard plate screws #49 and #50 [both 5mm Allen head]
Instructions:
- Align barrel / receiver subassembly with DAS1 stock.
- Insert DAS8 below DAS1 and use screws #50 and #40 to commence connecting the parts [only start the screws for position, do not tighten].
- Slip DAS19 and DAS17 bands over the end of the barrel behind the DAS15.
- Place DAS12 hand guard over the barrel and capture the larger end of the DAS12 under the lip of the hand guard ring, DAS7.
- Slide the DAS19 up to the mid level of the DAS12.
- Slide the DAS17 over the top of the hand guard, DAS12.
- With the hand guard, DAS12 under the hand guard ring, DAS7, tighten screws #49 and #50. This secures hand guard in the back.
- Slide DAS15 over the end of the DAS1 until the holes align. This to secure hand guard in the front.
- Insert Pin #51.
Final Assembly
Parts needed:
- DAS20 and DAS45 Phillips head screw
- DAS16 and DAS45 Phillips head screw
- Rear swivel assembly and screws - DAS6, DAS10, and DAS44 screws (2)
- DAS4
- DAS43
- DAS47
- DAS2 with DAS46 screws (2)
- DAS5 with DAS48 screws (2 )[3mm Allen head]
Instructions:
- Insert DAS20 into DAS19 band and tighten with screw DAS45.
- Insert DAS16 into DAS17 band and tighten with screw DAS45.
- Place DAS6 , rear swivel spacer in slot at the rear and bottom of DAS1.
- Capture the Rear swivel plate ring with the rear swivel and secure with two DAS44 screws.
- Align DAS2, butt plate over back of DAS1 and secure with two screws DAS46.
- Insert spring, DAS43 into the back opening of DAS311. Make sure the spring slides down the opening.
- Insert DAS4 into the back of the DAS311 until it stops. You should feel some spring resistance from the DAS43.
- With DAS4 in open position, insert bolt stop screw, DAS47, into the DAS4. Only hands tighten the screw 3/4 of the way in. Bolt should now be able to close and open smoothly.
- Align DAS5 with the top of DAS311 and secure with screws DAS48 (2) [3mm Allen head].